/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 20:50:32,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 20:50:32,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 20:50:32,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 20:50:32,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 20:50:32,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 20:50:32,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 20:50:32,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 20:50:32,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 20:50:32,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 20:50:32,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 20:50:32,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 20:50:32,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 20:50:32,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 20:50:32,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 20:50:32,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 20:50:32,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 20:50:32,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 20:50:32,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 20:50:32,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 20:50:32,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 20:50:32,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 20:50:32,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 20:50:32,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 20:50:32,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 20:50:32,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 20:50:32,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 20:50:32,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 20:50:32,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 20:50:32,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 20:50:32,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 20:50:32,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 20:50:32,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 20:50:32,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 20:50:32,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 20:50:32,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 20:50:32,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 20:50:32,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 20:50:32,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 20:50:32,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 20:50:32,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 20:50:32,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 20:50:32,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 20:50:32,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 20:50:32,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 20:50:32,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 20:50:32,651 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 20:50:32,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 20:50:32,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 20:50:32,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 20:50:32,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 20:50:32,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 20:50:32,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 20:50:32,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 20:50:32,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 20:50:32,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 20:50:32,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 20:50:32,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 20:50:32,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 20:50:32,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:50:32,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 20:50:32,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 20:50:32,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 20:50:32,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 20:50:32,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 20:50:32,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 20:50:32,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 20:50:32,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 20:50:33,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 20:50:33,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 20:50:33,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 20:50:33,083 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 20:50:33,083 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 20:50:33,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 20:50:33,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0597dd3f8/326bf0b451204630ae3ae122c6df0dd6/FLAGffcfa45fb [2021-01-06 20:50:33,792 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 20:50:33,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 20:50:33,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0597dd3f8/326bf0b451204630ae3ae122c6df0dd6/FLAGffcfa45fb [2021-01-06 20:50:34,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/0597dd3f8/326bf0b451204630ae3ae122c6df0dd6 [2021-01-06 20:50:34,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 20:50:34,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 20:50:34,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 20:50:34,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 20:50:34,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 20:50:34,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec2097f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34, skipping insertion in model container [2021-01-06 20:50:34,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 20:50:34,178 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_104949~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_105135~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2021-01-06 20:50:34,416 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6997,7010] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 20:50:34,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:50:34,509 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~id6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~alive6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~init__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_104949~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__i2~0,] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~r1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1__m1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~node2__m2~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~node3__m3~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~node4__m4~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~node5__m5~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~node6__m6~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_old~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~__return_105135~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main__c1~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~assert__arg~0,] [2021-01-06 20:50:34,607 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6997,7010] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~check__tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~st6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode6~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p6_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node6____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode5~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p5_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node5____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode4~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p4_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node4____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode3~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p3_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node3____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node2____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~st1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~send1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~p1_new~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mode1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~node1____CPAchecker_TMP_0~0,] [2021-01-06 20:50:34,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 20:50:34,673 INFO L208 MainTranslator]: Completed translation [2021-01-06 20:50:34,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34 WrapperNode [2021-01-06 20:50:34,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 20:50:34,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 20:50:34,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 20:50:34,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 20:50:34,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 20:50:34,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 20:50:34,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 20:50:34,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 20:50:34,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... [2021-01-06 20:50:34,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 20:50:34,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 20:50:34,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 20:50:34,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 20:50:34,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 20:50:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 20:50:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 20:50:35,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 20:50:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 20:50:36,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 20:50:36,206 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-01-06 20:50:36,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:50:36 BoogieIcfgContainer [2021-01-06 20:50:36,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 20:50:36,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 20:50:36,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 20:50:36,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 20:50:36,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 08:50:34" (1/3) ... [2021-01-06 20:50:36,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d47b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:50:36, skipping insertion in model container [2021-01-06 20:50:36,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 08:50:34" (2/3) ... [2021-01-06 20:50:36,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d47b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 08:50:36, skipping insertion in model container [2021-01-06 20:50:36,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 08:50:36" (3/3) ... [2021-01-06 20:50:36,218 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2021-01-06 20:50:36,225 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 20:50:36,231 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 20:50:36,250 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 20:50:36,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 20:50:36,280 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 20:50:36,280 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 20:50:36,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 20:50:36,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 20:50:36,281 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 20:50:36,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 20:50:36,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 20:50:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2021-01-06 20:50:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-06 20:50:36,313 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:36,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:36,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:36,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:36,320 INFO L82 PathProgramCache]: Analyzing trace with hash -539705947, now seen corresponding path program 1 times [2021-01-06 20:50:36,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:36,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605892891] [2021-01-06 20:50:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:36,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605892891] [2021-01-06 20:50:36,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:36,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:50:36,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772555599] [2021-01-06 20:50:36,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:50:36,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:36,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:50:36,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:36,891 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2021-01-06 20:50:37,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:37,011 INFO L93 Difference]: Finished difference Result 376 states and 609 transitions. [2021-01-06 20:50:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:50:37,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2021-01-06 20:50:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:37,048 INFO L225 Difference]: With dead ends: 376 [2021-01-06 20:50:37,048 INFO L226 Difference]: Without dead ends: 254 [2021-01-06 20:50:37,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-01-06 20:50:37,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 252. [2021-01-06 20:50:37,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-01-06 20:50:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 376 transitions. [2021-01-06 20:50:37,178 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 376 transitions. Word has length 73 [2021-01-06 20:50:37,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:37,179 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 376 transitions. [2021-01-06 20:50:37,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:50:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 376 transitions. [2021-01-06 20:50:37,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-01-06 20:50:37,190 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:37,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:37,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 20:50:37,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:37,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:37,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1913065188, now seen corresponding path program 1 times [2021-01-06 20:50:37,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:37,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089783548] [2021-01-06 20:50:37,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:37,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089783548] [2021-01-06 20:50:37,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:37,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:50:37,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558776531] [2021-01-06 20:50:37,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:50:37,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:37,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:50:37,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:37,441 INFO L87 Difference]: Start difference. First operand 252 states and 376 transitions. Second operand 3 states. [2021-01-06 20:50:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:37,551 INFO L93 Difference]: Finished difference Result 636 states and 988 transitions. [2021-01-06 20:50:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:50:37,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2021-01-06 20:50:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:37,559 INFO L225 Difference]: With dead ends: 636 [2021-01-06 20:50:37,559 INFO L226 Difference]: Without dead ends: 428 [2021-01-06 20:50:37,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-01-06 20:50:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2021-01-06 20:50:37,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2021-01-06 20:50:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 653 transitions. [2021-01-06 20:50:37,623 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 653 transitions. Word has length 74 [2021-01-06 20:50:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:37,624 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 653 transitions. [2021-01-06 20:50:37,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:50:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 653 transitions. [2021-01-06 20:50:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-06 20:50:37,626 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:37,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:37,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 20:50:37,627 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:37,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:37,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1816530126, now seen corresponding path program 1 times [2021-01-06 20:50:37,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:37,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375017363] [2021-01-06 20:50:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:37,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375017363] [2021-01-06 20:50:37,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:37,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:50:37,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356526123] [2021-01-06 20:50:37,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:50:37,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:37,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:50:37,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:37,731 INFO L87 Difference]: Start difference. First operand 426 states and 653 transitions. Second operand 3 states. [2021-01-06 20:50:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:37,805 INFO L93 Difference]: Finished difference Result 1126 states and 1767 transitions. [2021-01-06 20:50:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:50:37,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2021-01-06 20:50:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:37,811 INFO L225 Difference]: With dead ends: 1126 [2021-01-06 20:50:37,811 INFO L226 Difference]: Without dead ends: 744 [2021-01-06 20:50:37,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:37,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-01-06 20:50:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2021-01-06 20:50:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2021-01-06 20:50:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1153 transitions. [2021-01-06 20:50:37,866 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1153 transitions. Word has length 75 [2021-01-06 20:50:37,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:37,866 INFO L481 AbstractCegarLoop]: Abstraction has 742 states and 1153 transitions. [2021-01-06 20:50:37,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:50:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1153 transitions. [2021-01-06 20:50:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-06 20:50:37,867 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:37,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:37,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 20:50:37,868 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:37,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:37,869 INFO L82 PathProgramCache]: Analyzing trace with hash 2133086223, now seen corresponding path program 1 times [2021-01-06 20:50:37,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:37,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201971220] [2021-01-06 20:50:37,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:38,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201971220] [2021-01-06 20:50:38,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:38,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:50:38,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049451990] [2021-01-06 20:50:38,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:50:38,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:38,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:50:38,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:38,039 INFO L87 Difference]: Start difference. First operand 742 states and 1153 transitions. Second operand 3 states. [2021-01-06 20:50:38,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:38,196 INFO L93 Difference]: Finished difference Result 2010 states and 3163 transitions. [2021-01-06 20:50:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:50:38,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2021-01-06 20:50:38,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:38,207 INFO L225 Difference]: With dead ends: 2010 [2021-01-06 20:50:38,207 INFO L226 Difference]: Without dead ends: 1312 [2021-01-06 20:50:38,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:38,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2021-01-06 20:50:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1310. [2021-01-06 20:50:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2021-01-06 20:50:38,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2045 transitions. [2021-01-06 20:50:38,278 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2045 transitions. Word has length 76 [2021-01-06 20:50:38,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:38,279 INFO L481 AbstractCegarLoop]: Abstraction has 1310 states and 2045 transitions. [2021-01-06 20:50:38,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:50:38,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2045 transitions. [2021-01-06 20:50:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-01-06 20:50:38,280 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:38,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:38,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 20:50:38,281 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:38,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:38,282 INFO L82 PathProgramCache]: Analyzing trace with hash 19574795, now seen corresponding path program 1 times [2021-01-06 20:50:38,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:38,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218886277] [2021-01-06 20:50:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:38,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218886277] [2021-01-06 20:50:38,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:38,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:50:38,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19299634] [2021-01-06 20:50:38,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:50:38,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:38,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:50:38,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:38,434 INFO L87 Difference]: Start difference. First operand 1310 states and 2045 transitions. Second operand 3 states. [2021-01-06 20:50:38,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:38,566 INFO L93 Difference]: Finished difference Result 3586 states and 5631 transitions. [2021-01-06 20:50:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:50:38,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2021-01-06 20:50:38,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:38,580 INFO L225 Difference]: With dead ends: 3586 [2021-01-06 20:50:38,581 INFO L226 Difference]: Without dead ends: 2320 [2021-01-06 20:50:38,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:38,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2021-01-06 20:50:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2318. [2021-01-06 20:50:38,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2021-01-06 20:50:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3613 transitions. [2021-01-06 20:50:38,741 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3613 transitions. Word has length 77 [2021-01-06 20:50:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:38,742 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 3613 transitions. [2021-01-06 20:50:38,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:50:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3613 transitions. [2021-01-06 20:50:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-01-06 20:50:38,743 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:38,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:38,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 20:50:38,743 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash 366454550, now seen corresponding path program 1 times [2021-01-06 20:50:38,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:38,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999509591] [2021-01-06 20:50:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:39,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:39,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999509591] [2021-01-06 20:50:39,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:39,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:50:39,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898050383] [2021-01-06 20:50:39,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 20:50:39,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:39,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 20:50:39,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:50:39,027 INFO L87 Difference]: Start difference. First operand 2318 states and 3613 transitions. Second operand 8 states. [2021-01-06 20:50:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:40,085 INFO L93 Difference]: Finished difference Result 14122 states and 21987 transitions. [2021-01-06 20:50:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 20:50:40,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2021-01-06 20:50:40,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:40,149 INFO L225 Difference]: With dead ends: 14122 [2021-01-06 20:50:40,150 INFO L226 Difference]: Without dead ends: 11848 [2021-01-06 20:50:40,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:50:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11848 states. [2021-01-06 20:50:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11848 to 11838. [2021-01-06 20:50:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11838 states. [2021-01-06 20:50:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11838 states to 11838 states and 18381 transitions. [2021-01-06 20:50:41,044 INFO L78 Accepts]: Start accepts. Automaton has 11838 states and 18381 transitions. Word has length 78 [2021-01-06 20:50:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:41,045 INFO L481 AbstractCegarLoop]: Abstraction has 11838 states and 18381 transitions. [2021-01-06 20:50:41,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 20:50:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 11838 states and 18381 transitions. [2021-01-06 20:50:41,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-01-06 20:50:41,046 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:41,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:41,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 20:50:41,048 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:41,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:41,049 INFO L82 PathProgramCache]: Analyzing trace with hash -252245181, now seen corresponding path program 1 times [2021-01-06 20:50:41,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:41,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229660777] [2021-01-06 20:50:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:41,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229660777] [2021-01-06 20:50:41,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:41,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:50:41,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819875042] [2021-01-06 20:50:41,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:50:41,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:41,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:50:41,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:41,155 INFO L87 Difference]: Start difference. First operand 11838 states and 18381 transitions. Second operand 3 states. [2021-01-06 20:50:42,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:42,384 INFO L93 Difference]: Finished difference Result 32930 states and 51023 transitions. [2021-01-06 20:50:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:50:42,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2021-01-06 20:50:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:42,477 INFO L225 Difference]: With dead ends: 32930 [2021-01-06 20:50:42,478 INFO L226 Difference]: Without dead ends: 21136 [2021-01-06 20:50:42,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:50:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21136 states. [2021-01-06 20:50:43,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21136 to 21134. [2021-01-06 20:50:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21134 states. [2021-01-06 20:50:43,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21134 states to 21134 states and 32493 transitions. [2021-01-06 20:50:43,934 INFO L78 Accepts]: Start accepts. Automaton has 21134 states and 32493 transitions. Word has length 80 [2021-01-06 20:50:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:43,935 INFO L481 AbstractCegarLoop]: Abstraction has 21134 states and 32493 transitions. [2021-01-06 20:50:43,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:50:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 21134 states and 32493 transitions. [2021-01-06 20:50:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-01-06 20:50:43,937 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:43,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:43,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 20:50:43,937 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:43,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:43,938 INFO L82 PathProgramCache]: Analyzing trace with hash 192381485, now seen corresponding path program 1 times [2021-01-06 20:50:43,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:43,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290089451] [2021-01-06 20:50:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:44,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290089451] [2021-01-06 20:50:44,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:44,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:50:44,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203089004] [2021-01-06 20:50:44,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 20:50:44,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:44,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 20:50:44,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:50:44,060 INFO L87 Difference]: Start difference. First operand 21134 states and 32493 transitions. Second operand 6 states. [2021-01-06 20:50:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:50:47,501 INFO L93 Difference]: Finished difference Result 83284 states and 127920 transitions. [2021-01-06 20:50:47,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 20:50:47,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2021-01-06 20:50:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:50:47,670 INFO L225 Difference]: With dead ends: 83284 [2021-01-06 20:50:47,671 INFO L226 Difference]: Without dead ends: 62194 [2021-01-06 20:50:47,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:50:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62194 states. [2021-01-06 20:50:51,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62194 to 62190. [2021-01-06 20:50:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62190 states. [2021-01-06 20:50:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62190 states to 62190 states and 95149 transitions. [2021-01-06 20:50:51,653 INFO L78 Accepts]: Start accepts. Automaton has 62190 states and 95149 transitions. Word has length 80 [2021-01-06 20:50:51,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:50:51,654 INFO L481 AbstractCegarLoop]: Abstraction has 62190 states and 95149 transitions. [2021-01-06 20:50:51,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 20:50:51,654 INFO L276 IsEmpty]: Start isEmpty. Operand 62190 states and 95149 transitions. [2021-01-06 20:50:51,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-01-06 20:50:51,655 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:50:51,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:50:51,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 20:50:51,655 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:50:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:50:51,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1809886376, now seen corresponding path program 1 times [2021-01-06 20:50:51,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:50:51,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804247513] [2021-01-06 20:50:51,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:50:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:50:51,900 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-01-06 20:50:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:50:52,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804247513] [2021-01-06 20:50:52,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:50:52,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:50:52,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995136056] [2021-01-06 20:50:52,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 20:50:52,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:50:52,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 20:50:52,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:50:52,046 INFO L87 Difference]: Start difference. First operand 62190 states and 95149 transitions. Second operand 8 states. [2021-01-06 20:51:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:05,456 INFO L93 Difference]: Finished difference Result 350332 states and 536692 transitions. [2021-01-06 20:51:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 20:51:05,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2021-01-06 20:51:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:06,289 INFO L225 Difference]: With dead ends: 350332 [2021-01-06 20:51:06,289 INFO L226 Difference]: Without dead ends: 288186 [2021-01-06 20:51:06,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-01-06 20:51:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288186 states. [2021-01-06 20:51:16,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288186 to 124334. [2021-01-06 20:51:16,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124334 states. [2021-01-06 20:51:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124334 states to 124334 states and 187949 transitions. [2021-01-06 20:51:16,832 INFO L78 Accepts]: Start accepts. Automaton has 124334 states and 187949 transitions. Word has length 80 [2021-01-06 20:51:16,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:16,833 INFO L481 AbstractCegarLoop]: Abstraction has 124334 states and 187949 transitions. [2021-01-06 20:51:16,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 20:51:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand 124334 states and 187949 transitions. [2021-01-06 20:51:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-01-06 20:51:16,835 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:16,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:16,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 20:51:16,835 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:16,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:16,836 INFO L82 PathProgramCache]: Analyzing trace with hash 252446614, now seen corresponding path program 1 times [2021-01-06 20:51:16,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:16,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142190281] [2021-01-06 20:51:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:16,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142190281] [2021-01-06 20:51:16,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:16,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 20:51:16,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642517570] [2021-01-06 20:51:16,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 20:51:16,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:16,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 20:51:16,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 20:51:16,955 INFO L87 Difference]: Start difference. First operand 124334 states and 187949 transitions. Second operand 5 states. [2021-01-06 20:51:31,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:31,722 INFO L93 Difference]: Finished difference Result 253232 states and 380462 transitions. [2021-01-06 20:51:31,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 20:51:31,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2021-01-06 20:51:31,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:32,218 INFO L225 Difference]: With dead ends: 253232 [2021-01-06 20:51:32,218 INFO L226 Difference]: Without dead ends: 253230 [2021-01-06 20:51:32,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 20:51:32,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253230 states. [2021-01-06 20:51:42,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253230 to 128942. [2021-01-06 20:51:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128942 states. [2021-01-06 20:51:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128942 states to 128942 states and 192557 transitions. [2021-01-06 20:51:42,847 INFO L78 Accepts]: Start accepts. Automaton has 128942 states and 192557 transitions. Word has length 81 [2021-01-06 20:51:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:51:42,847 INFO L481 AbstractCegarLoop]: Abstraction has 128942 states and 192557 transitions. [2021-01-06 20:51:42,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 20:51:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 128942 states and 192557 transitions. [2021-01-06 20:51:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-01-06 20:51:42,849 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:51:42,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:51:42,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 20:51:42,849 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:51:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:51:42,850 INFO L82 PathProgramCache]: Analyzing trace with hash -753516424, now seen corresponding path program 1 times [2021-01-06 20:51:42,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:51:42,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570612928] [2021-01-06 20:51:42,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:51:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:51:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:51:43,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570612928] [2021-01-06 20:51:43,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:51:43,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:51:43,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726673533] [2021-01-06 20:51:43,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:51:43,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:51:43,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:51:43,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:43,215 INFO L87 Difference]: Start difference. First operand 128942 states and 192557 transitions. Second operand 3 states. [2021-01-06 20:51:56,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:51:56,399 INFO L93 Difference]: Finished difference Result 316804 states and 472881 transitions. [2021-01-06 20:51:56,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:51:56,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2021-01-06 20:51:56,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:51:56,857 INFO L225 Difference]: With dead ends: 316804 [2021-01-06 20:51:56,857 INFO L226 Difference]: Without dead ends: 187906 [2021-01-06 20:51:56,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:51:57,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187906 states. [2021-01-06 20:52:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187906 to 186848. [2021-01-06 20:52:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186848 states. [2021-01-06 20:52:11,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186848 states to 186848 states and 277199 transitions. [2021-01-06 20:52:11,216 INFO L78 Accepts]: Start accepts. Automaton has 186848 states and 277199 transitions. Word has length 82 [2021-01-06 20:52:11,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:52:11,217 INFO L481 AbstractCegarLoop]: Abstraction has 186848 states and 277199 transitions. [2021-01-06 20:52:11,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:52:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 186848 states and 277199 transitions. [2021-01-06 20:52:11,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 20:52:11,269 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:52:11,269 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:52:11,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 20:52:11,269 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:52:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:52:11,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1137103824, now seen corresponding path program 1 times [2021-01-06 20:52:11,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:52:11,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437363564] [2021-01-06 20:52:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:52:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:52:11,420 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-06 20:52:11,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437363564] [2021-01-06 20:52:11,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:52:11,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-06 20:52:11,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111804568] [2021-01-06 20:52:11,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 20:52:11,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:52:11,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 20:52:11,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-01-06 20:52:11,423 INFO L87 Difference]: Start difference. First operand 186848 states and 277199 transitions. Second operand 8 states. [2021-01-06 20:52:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:52:41,926 INFO L93 Difference]: Finished difference Result 494302 states and 739894 transitions. [2021-01-06 20:52:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 20:52:41,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2021-01-06 20:52:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:52:42,941 INFO L225 Difference]: With dead ends: 494302 [2021-01-06 20:52:42,941 INFO L226 Difference]: Without dead ends: 412460 [2021-01-06 20:52:43,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-01-06 20:52:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412460 states. [2021-01-06 20:53:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412460 to 262816. [2021-01-06 20:53:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262816 states. [2021-01-06 20:53:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262816 states to 262816 states and 389935 transitions. [2021-01-06 20:53:07,407 INFO L78 Accepts]: Start accepts. Automaton has 262816 states and 389935 transitions. Word has length 112 [2021-01-06 20:53:07,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:53:07,407 INFO L481 AbstractCegarLoop]: Abstraction has 262816 states and 389935 transitions. [2021-01-06 20:53:07,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 20:53:07,408 INFO L276 IsEmpty]: Start isEmpty. Operand 262816 states and 389935 transitions. [2021-01-06 20:53:07,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 20:53:07,456 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:53:07,457 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:53:07,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-06 20:53:07,457 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:53:07,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:53:07,458 INFO L82 PathProgramCache]: Analyzing trace with hash 2032826505, now seen corresponding path program 1 times [2021-01-06 20:53:07,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:53:07,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339912956] [2021-01-06 20:53:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:53:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:53:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:53:07,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339912956] [2021-01-06 20:53:07,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:53:07,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:53:07,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768141941] [2021-01-06 20:53:07,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:53:07,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:53:07,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:53:07,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:53:07,568 INFO L87 Difference]: Start difference. First operand 262816 states and 389935 transitions. Second operand 3 states. [2021-01-06 20:53:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 20:53:37,573 INFO L93 Difference]: Finished difference Result 444177 states and 659561 transitions. [2021-01-06 20:53:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 20:53:37,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2021-01-06 20:53:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 20:53:38,202 INFO L225 Difference]: With dead ends: 444177 [2021-01-06 20:53:38,202 INFO L226 Difference]: Without dead ends: 339247 [2021-01-06 20:53:38,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:53:38,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339247 states. [2021-01-06 20:54:06,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339247 to 317765. [2021-01-06 20:54:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317765 states. [2021-01-06 20:54:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317765 states to 317765 states and 467343 transitions. [2021-01-06 20:54:08,079 INFO L78 Accepts]: Start accepts. Automaton has 317765 states and 467343 transitions. Word has length 112 [2021-01-06 20:54:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 20:54:08,079 INFO L481 AbstractCegarLoop]: Abstraction has 317765 states and 467343 transitions. [2021-01-06 20:54:08,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 20:54:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 317765 states and 467343 transitions. [2021-01-06 20:54:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-01-06 20:54:08,132 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 20:54:08,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 20:54:08,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-06 20:54:08,133 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 20:54:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 20:54:08,133 INFO L82 PathProgramCache]: Analyzing trace with hash 156143728, now seen corresponding path program 1 times [2021-01-06 20:54:08,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 20:54:08,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618971580] [2021-01-06 20:54:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 20:54:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 20:54:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 20:54:08,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618971580] [2021-01-06 20:54:08,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 20:54:08,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 20:54:08,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743303231] [2021-01-06 20:54:08,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 20:54:08,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 20:54:08,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 20:54:08,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 20:54:08,218 INFO L87 Difference]: Start difference. First operand 317765 states and 467343 transitions. Second operand 3 states.